AMPLIFIER 200 WATTS
Excellent transistor stereo amplifier 100w per channel, ideal for videorockolas, computer, etc. taverns
Follow the same steps that we apply "an assembly amplifier. " This is not an amp for beginners recommend that first crafted from amplifier 100 watts or the 30 watts. Taking
mask components and the PCB, it's easy to lift the schematic diagram, which is an exercise or task.
This amplifier was tested with 2 speakers of 300 watts at 8 ohms and 12 inches, giving an excellent performance. You can put speakers up to 400 watts. If you want to work at 4 ohms, remember to place a fairly large heatsink and a fan.
sure to place the transistors in the correct position, guided by the mask components Otherwise you can burn your amplifier or simplemete funsione not.
If you want to work this amplifier into 4 ohms, Los TIP42C is quite hot, so we recommend fitting heat sink and fan to sink outputs.
Remember that the output transistors are isolated from the heatsink with mica insulators and silicone grease for heat trasnsmitir aluminum. Failure to achieve the 2SC3280 transistors, you can replace the 2SC3281.
is also important that the sink is large enough, since these transistors emit enough heat.
The position of the diodes is very important, look carefully before placing. Note that electrolytic capacitors have polarity, if not placed correctly, can explode. RÃjase by the mask components.
Remember that the transformer has 3 wires, 2 of them give 33 volts, with respect to the central TAP zero mark, and between the extremes marked 66 volts. The transformer is 8 amps and must be connected to the board respecting the central TAP goes to the ground (GND), and the two ends go to the inputs of alternating current (~). Click
on the photo to see larger.
Video tutorial 200W amplifier assembly
> >> Download here <<< PDF file to build the 200w amp with transistors of excellent quality. Having the mask and the circuit board components, it is easy to lift the schematic which is like exercise.
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